<div class="refentry" title="glGetBufferParameteriv"><a id="glGetBufferParameteriv"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>glGetBufferParameteriv — return parameters of a buffer object</p></div><div class="refsynopsisdiv" title="C Specification"><h2>C Specification</h2><div class="funcsynopsis"><table class="funcprototype-table"><tr><td><code class="funcdef">void <b class="fsfunc">glGetBufferParameteriv</b>(</code></td><td>GLenum <var class="pdparam">target</var>, </td></tr><tr><td> </td><td>GLenum <var class="pdparam">pname</var>, </td></tr><tr><td> </td><td>GLint * <var class="pdparam">params</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1" title="Parameters"><a id="parameters"></a><h2>Parameters</h2><div class="variablelist"><dl><dt><span class="term">

<em class="parameter"><code>target</code></em>

</span></dt><dd><p>

Specifies the target buffer object.

The symbolic constant must be <code class="constant">GL_ARRAY_BUFFER</code> or

<code class="constant">GL_ELEMENT_ARRAY_BUFFER</code>.

</p></dd><dt><span class="term">

<em class="parameter"><code>pname</code></em>

</span></dt><dd><p>

Specifies the symbolic name of a buffer object parameter.

Accepted values are

<code class="constant">GL_BUFFER_SIZE</code> or <code class="constant">GL_BUFFER_USAGE</code>.

</p></dd><dt><span class="term">

<em class="parameter"><code>params</code></em>

</span></dt><dd><p>Returns the requested parameter.</p></dd></dl></div></div><div class="refsect1" title="Description"><a id="description"></a><h2>Description</h2><p>

<code class="function">glGetBufferParameteriv</code> returns in <em class="parameter"><code>params</code></em> a selected parameter of the buffer object

specified by <em class="parameter"><code>target</code></em>.

</p><p>

<em class="parameter"><code>pname</code></em> names a specific buffer object parameter, as follows:

</p><div class="variablelist"><dl><dt><span class="term"><code class="constant">GL_BUFFER_SIZE</code></span></dt><dd><p>

<em class="parameter"><code>params</code></em> returns the size of the buffer object, measured in bytes.

The initial value is 0.

</p></dd><dt><span class="term"><code class="constant">GL_BUFFER_USAGE</code></span></dt><dd><p>

<em class="parameter"><code>params</code></em> returns the buffer object's usage pattern. The initial value is

<code class="constant">GL_STATIC_DRAW</code>.

</p></dd></dl></div></div><div class="refsect1" title="Notes"><a id="notes"></a><h2>Notes</h2><p>

If an error is generated,

no change is made to the contents of <em class="parameter"><code>params</code></em>.

</p></div><div class="refsect1" title="Errors"><a id="errors"></a><h2>Errors</h2><p>

<code class="constant">GL_INVALID_ENUM</code> is generated if <em class="parameter"><code>target</code></em> or <em class="parameter"><code>pname</code></em> is not an

accepted value.

</p><p>

<code class="constant">GL_INVALID_OPERATION</code> is generated if the reserved buffer object name 0 is bound to <em class="parameter"><code>target</code></em>.

</p></div><div class="refsect1" title="See Also"><a id="seealso"></a><h2>See Also</h2><p>

<a class="citerefentry" href="glBufferData"><span class="citerefentry"><span class="refentrytitle">glBufferData</span></span></a>,

<a class="citerefentry" href="glBindBuffer"><span class="citerefentry"><span class="refentrytitle">glBindBuffer</span></span></a>

</p></div><div class="refsect1" title="Copyright"><a id="copyright"></a><h2>Copyright</h2><p>

Copyright © 2003-2004

Silicon Graphics, Inc. This document is licensed under the SGI

Free Software B License. For details, see

<a class="ulink" href="https://web.archive.org/web/20171022161616/http://oss.sgi.com/projects/FreeB/" target="_top">https://web.archive.org/web/20171022161616/http://oss.sgi.com/projects/FreeB/</a>.

</p></div></div>